0 votes

Guys, I need some help with camera stuff. I'm not a programmer by any means. I'm an artist. Have you guys used sketchfab? What would be the easiest way for me to set up a camera like they have in sketchfab to build a 3d model viewer? I need to be able to move around, orbit, zoom, etc without using any gui to do this. I did try a couple scripts I saw on YouTube but none of them really had a plug and play kind of function. I hope I don't sound like I'm being difficult. I would love to learn to set this up and k have an open mind to learning programming haha. Thank you in advance.

in Engine by (20 points)

1 Answer

0 votes

I just wrote a quick script that should do exactly what you want. Just add a spatial to your scene that has this script attached to it and one child named "CamRotHelper" that is also a spatial. This CamRotHelper then contains a camera node. The camera node should have a z position of 2.

Here's the script. For now it only works with your mouse and exactly like on sketchfab but I could add touch functionality.

extends Spatial

const ZOOM_FACTOR = 1.2
const ROTATE_SPEED = 0.5
const PAN_SPEED = 0.005

func _ready():
    pass # Replace with function body.

func _input(event):
    if event is InputEventMouseMotion:
        if Input.is_mouse_button_pressed(BUTTON_LEFT):
            # Rotate
            self.rotate_y(deg2rad(event.get_relative().x * ROTATE_SPEED))
            $CamRotHelper.rotate_x(deg2rad(event.get_relative().y * ROTATE_SPEED))

            #Stop rotation over top or bottom
            var camera_rot = $CamRotHelper.rotation_degrees
            camera_rot.x = clamp(camera_rot.x, -90, 90)
            $CamRotHelper.rotation_degrees = camera_rot
        elif Input.is_mouse_button_pressed(BUTTON_MIDDLE) or Input.is_mouse_button_pressed(BUTTON_RIGHT):
            # Pan
                event.get_relative().x * PAN_SPEED,
                event.get_relative().y * PAN_SPEED,
    elif event is InputEventMouseButton and event.is_pressed():
        # Zoom
        if event.button_index == BUTTON_WHEEL_DOWN:
            self.scale_object_local(Vector3.ONE * (ZOOM_FACTOR))
        elif event.button_index == BUTTON_WHEEL_UP:
            self.scale_object_local(Vector3.ONE * (1/ZOOM_FACTOR))
by (330 points)
edited by

Oh my GOD you are a genius dude! I'm going to have to buy you a beer when i get paid LOL. I have been spending days trying to learn how to do this stuff. How did you come up with this solution? This is awesome. I want to learn programming and have NO clue where to start.

Heck, if touch support isn't too much to implement that could be awesome as well. You should totally publish this somewhere though or even throw it on youtube. It's a shame godot doesnt have this as a built in sort of template.

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